High cpu load

[igorfelluga]

Hi many times the server is slow and I get I cpu load, here I print the top command where I think is something suspect, can be?

Tasks: 139 total, 1 running, 134 sleeping, 0 stopped, 4 zombie
Cpu(s): 2.8% us, 7.0% sy, 0.0% ni, 0.0% id, 89.7% wa, 0.5% hi, 0.0% si
Mem: 1027676k total, 412172k used, 615504k free, 540k buffers
Swap: 2048276k total, 2844k used, 2045432k free, 27248k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
32 root 15 0 0 0 0 D 5.5 0.0 0:00.62 [kswapd0]
4997 root 16 0 2836 1004 764 R 0.5 0.1 0:01.38 top
6369 parcorur 18 0 17828 5328 3364 D 0.5 0.5 0:00.04 /usr/bin/php dynamicnews.php
6370 cercalo 18 0 16856 5260 3336 D 0.5 0.5 0:00.04 /usr/bin/php cercalo.php
6372 italiash 17 0 17024 5332 3364 D 0.5 0.5 0:00.04 /usr/bin/php galleria_img.php
6406 etracks2 18 0 18052 5260 3336 D 0.5 0.5 0:00.05 /usr/bin/php merengue_35.php
6437 italiash 18 0 16584 5272 3344 D 0.5 0.5 0:00.04 /usr/bin/php galleria_img.php
6441 root 18 0 7372 2540 1320 S 0.5 0.2 0:00.03 /usr/bin/perl /scripts/restartsrv_eximstats --check

 

[nickp666]

please post the result of: uname -a

 

[igorfelluga]

result is:

Linux xxxx.xxxxxxx.com 2.6.9-22.EL #1 Mon Sep 19 18:20:28 EDT 2005 i686 i686 i386 GNU/Linux

 

[nickp666]

you are running a kernel which is known to have both load and security problems, I would advise you upgrade as soon as possible

 

[igorfelluga]

may you explain the easy way to update it? thanks

 

[igorfelluga]

I have update the kernel to

Linux xxxxx.xxxxxx.com 2.6.9-42.0.2.EL #1 Thu Aug 17 17:36:53 EDT 2006 i686 i686 i386 GNU/Linux

do you think is it enough?

 

[igorfelluga]

any can answer me?
I must upgrade to another kernel?
Thanks

 

[nickp666]

DO THIS ENTIRELY AT YOUR OWN RISK

edit /etc/yum.conf and remove kernel* from the exclude list,

then run:

yum update

once that has completed it should have updated your kernel, so re-add kernel* to the exclude list in yum.conf and you should be fine. - Reboot and then cross your fingers!!

There are plenty of threads on this board about kernel upgrades so if you get stuck do a search, otherwise seek professional help.

 

[igorfelluga]

I have just update to the 2.6.9-42, I need to know if is enough or no? If no to which kernel I need to upgrade?
Thansk

 

[PitadaVespa]

What about mine?

Linux XXXXXXXXXXXXXX 2.4.20-021stab028.12.777-enterprise #1 SMP


Thanks,
Pita

 

[nickp666]

I have just update to the 2.6.9-42, I need to know if is enough or no? If no to which kernel I need to upgrade?
Thansk

That is the current CentOS/Redhat Stable Kernel Yes

 

[nickp666]

What about mine?

Linux XXXXXXXXXXXXXX 2.4.20-021stab028.12.777-enterprise #1 SMP


Thanks,
Pita

Which OS are you running Pita?

 

[PitadaVespa]

Which OS are you running Pita?

CentOS 3.8

Thanks,
Pita

 

[nickp666]

kernel-2.4.21-47

is the newest I could find in the yum repo's for CentOS 3.8

 

[celliott]

What about mine?

Linux XXXXXXXXXXXXXX 2.4.20-021stab028.12.777-enterprise #1 SMP


Thanks,
Pita

I could be mistaken but that looks like a Kernel from Virtuozzo or simular VPS software. Are you on a VPS server? If so dont worrey as your hosting provider handles the kernel, its shared between all of the VPS's on a node.

 

[nickp666]

I could be mistaken but that looks like a Kernel from Virtuozzo or simular VPS software. Are you on a VPS server? If so dont worrey as your hosting provider handles the kernel, its shared between all of the VPS's on a node.

Well spotted! a customer of mine has a vps with 2.4.20-021stab028.19.777-enterprise on it (Its virtuozzo based)

 

[PitadaVespa]

I could be mistaken but that looks like a Kernel from Virtuozzo or simular VPS software. Are you on a VPS server? If so dont worrey as your hosting provider handles the kernel, its shared between all of the VPS's on a node.

You're quite right! Thanks!